Oxfordshire · England
Swalcliffe Sand Mastic
Specialist sand mastic for Swalcliffe: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Mastic dropping out of the joint
- Gaps round a timber door in stone or brick
- Weathered mastic on the most exposed windows
Why deal with it now?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and finishes neatly against the masonry. Where a wall is exposed, as many are in small places like Swalcliffe, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Why book with us
- 180+ five-star Google reviews
- Experience in homes, commercial sites and hotels
- One-year guarantee on every job
- We never seal over old sealant
Take a look at our cost guide and what customers say.
Sand mastic in Swalcliffe
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. If you have old sand mastic that has cracked, crumbled or fallen out and old cement repairs round a window that have failed, we can put it right.
Somewhere as small as Swalcliffe, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Location
- Swalcliffe (OX15)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Swalcliffe
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
- The product the joint needs
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email and we will talk you through it.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- If someone has resealed it before
- What’s wrong with the joints now
- The rough size of the job
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
Aftercare tips
So the new joints stay in good condition:
- Plan mastic work ahead of painting
- Look over the window mastic once a year
- Check with your local planning authority if your home is listed
- Ask a joiner to look at soft timber first
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens.
What the job involves on each surface
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
What we can’t put right
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Damaged stone surrounds
- Sashes that rattle, stick or will not open
- Planning or listed building consent (your local planning authority decides)
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Surfaces we seal
- Period & listed homes
- Tenement windows
- Timber door frames
- Stone surrounds
- Brick reveals
- Sash and case windows
Places near Swalcliffe
What else we do in Swalcliffe
What we do, step by step
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before we start. The work usually takes a few hours per window, depending on the condition of the joints. Somewhere like Swalcliffe needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
How to get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work.
Related advice
Your questions about sand mastic in Swalcliffe
Is Swalcliffe in your area for sand mastic?
Yes, Swalcliffe is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Is sand mastic in Swalcliffe guaranteed?
All our work, in Swalcliffe and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
When will the new mastic be hard?
A skin forms quite soon, but full hardening takes longer. We will explain what to expect before we leave.
Should I use sand mastic or silicone?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant, and we’ll explain why.
How do I get a quote for sand mastic in Swalcliffe?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can tenants book the work?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Frames and glazing around Swalcliffe
With historic houses such as Broughton Castle (about 2.5 miles east) nearby, there’s older building stock in the area around Swalcliffe as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of St Peter and St Paul, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as Sibford School, its window and door frames need their mastic kept sound, just like a home’s.
Swalcliffe is about 5 miles west of Banbury, in Oxfordshire. Anywhere in OX15, we can carry out sand mastic at your property. Our Oxfordshire coverage runs to 443 places, Swalcliffe among them. There’s also a page for Oxford, roughly 22 miles from Swalcliffe.
Every address in OX15 is covered for sand mastic, from the main roads to the quietest streets. Sand mastic is available to properties on The Green, Bakers Lane and Brick Row. Other places close to Swalcliffe include Tadmarton (1 mile east), Burdrop (1 mile west), Sibford Ferris (1 mile west), Sibford Gower (2 miles west) and Shutford (2 miles north). Within a short drive, we also cover Banbury (5 miles east), Bure Park (15 miles south-east), Chipping Norton (8 miles south-west), Neithrop (4 miles north-east), Grimsbury (6 miles east) and Ruscote (4 miles north-east).
Around Swalcliffe
We work in homes and buildings around The Lampet Arms and the streets around them. A little further out are Bloxham Village Museum (3.5 miles south-east) and Broughton Castle (2.5 miles east). Green spaces nearby include Crouch Hill and Woodford Bottom and Lamb's Pool.